本次共计算 1 个题目:每一题对 x 求 1 阶导数。
注意,变量是区分大小写的。\[ \begin{equation}\begin{split}【1/1】求函数arccot(\frac{(1 + {x}^{\frac{1}{2}})}{(1 - {x}^{\frac{1}{2}})}) 关于 x 的 1 阶导数:\\\end{split}\end{equation} \]
\[ \begin{equation}\begin{split}\\解:&\\ &原函数 = arccot(\frac{x^{\frac{1}{2}}}{(-x^{\frac{1}{2}} + 1)} + \frac{1}{(-x^{\frac{1}{2}} + 1)})\\&\color{blue}{函数的第 1 阶导数:}\\&\frac{d\left( arccot(\frac{x^{\frac{1}{2}}}{(-x^{\frac{1}{2}} + 1)} + \frac{1}{(-x^{\frac{1}{2}} + 1)})\right)}{dx}\\=&(\frac{((\frac{-(\frac{-\frac{1}{2}}{x^{\frac{1}{2}}} + 0)}{(-x^{\frac{1}{2}} + 1)^{2}})x^{\frac{1}{2}} + \frac{\frac{1}{2}}{(-x^{\frac{1}{2}} + 1)x^{\frac{1}{2}}} + (\frac{-(\frac{-\frac{1}{2}}{x^{\frac{1}{2}}} + 0)}{(-x^{\frac{1}{2}} + 1)^{2}}))}{(1 + (\frac{x^{\frac{1}{2}}}{(-x^{\frac{1}{2}} + 1)} + \frac{1}{(-x^{\frac{1}{2}} + 1)})^{2})})\\=&\frac{1}{2(-x^{\frac{1}{2}} + 1)^{2}(\frac{x}{(-x^{\frac{1}{2}} + 1)^{2}} + \frac{2x^{\frac{1}{2}}}{(-x^{\frac{1}{2}} + 1)^{2}} + \frac{1}{(-x^{\frac{1}{2}} + 1)^{2}} + 1)} + \frac{1}{2(-x^{\frac{1}{2}} + 1)(\frac{x}{(-x^{\frac{1}{2}} + 1)^{2}} + \frac{2x^{\frac{1}{2}}}{(-x^{\frac{1}{2}} + 1)^{2}} + \frac{1}{(-x^{\frac{1}{2}} + 1)^{2}} + 1)x^{\frac{1}{2}}} + \frac{1}{2(-x^{\frac{1}{2}} + 1)^{2}(\frac{x}{(-x^{\frac{1}{2}} + 1)^{2}} + \frac{2x^{\frac{1}{2}}}{(-x^{\frac{1}{2}} + 1)^{2}} + \frac{1}{(-x^{\frac{1}{2}} + 1)^{2}} + 1)x^{\frac{1}{2}}}\\ \end{split}\end{equation} \]你的问题在这里没有得到解决?请到 热门难题 里面看看吧!